Material spreader



F. E. CURRIVAN ET AL MATERIAL SPREADER Filed Feb. 1, 1959 4 Sheets-Sheet l Inventors F17. Ca rr/Va Y (I. mfg/0W A iiorneys Nov. M, 1939. F. E. CURRIVAN E1 AL 2.179.483

MATER IAL SPREADER Filed Feb. 1, 1939 4 Sheets-Sheet 2 Inventors Y FE Carr/Va L A m w R R U C E F MATERIAL SPREADER 4 Sheets-Shet s Inventors i. 62 rr/ I/CZ/7 C. W 570 n? Filed Feb. 1, 1939 A ttorneys Nov. 14, 1939..

F. E. CURRIVAN ET AL MATER IAL SPREADER Filed Feb. l, 1959 4 Shee t's-Sheet 4 Inventors Ca r'l v l afi A iiorneys Ii. U. W s row/y ing disk driven by a ground engaging wheel. tion 6. The horizontal intermediate portion 6 of arrangement of parts through the medium of vantage n Fig. 4 0 e d aw s. 16 which the device may be expeditiously adjusted as M n d n h h h pp r l i a frame desired for operation on trucks of different structure which is desig e e y by the heights. reference numeral it. The frame Ill includes a Another very important object of the invention pa r of paced, pa side ba ll having 'i'ES MATERHAL SPREADER Francis E. Currivan and Carl W. Brown, Brattleboro, Vt.

Application February 1, 1939, Serial No. 254,121

3 Claims. (Cl. 275-8) The present invention relates to new and use in its inclined position for dumping and the end ful improvements in material spreaders of the gate 4 thereof is open. type adapted to be mounted beneath the rear end The bottom of the hopper l comprises inclined of a truck body and including a rotating spreadside portions 5 and a horizontal intermediate por- OFFlCE The primary object of the invention is to prothe bottom of the hopper I has formed therein a vide, in a manner as hereinafter set forth, a matedischarge Opening The Opening s 00 t 0 ed rial spreader of the aforementioned character emthrough the medium of slidable plates 8 which bodying a novel construction, combination and e Operated y hand ve s 9- his is shown to is to provide a material spreader of the character m d t ereo guides Connecting t e f0 15 set forth embodying novel means for frictionally Ward ends of the side bars II is a cross member driving the spreading disk from th ground en- I3. Extending between the side bars II at an gaging wheel. intermediate point is a shaft M having mounted Still another important object or" the invention thereon p pneumatic i q pp whe ls 29 is to provide unique means through the medium It ay be Wel to here state that the wheels of which the width of the area. over which the 5 are adapted to engage the u d for aotuamaterial is spread may be controlled as desired. n r y w the h n is in p n- All of the foregoing and still further objects The frame It! is Connected to the pp l for and advantages of th in nti n ill become apvertical adjustment relative thereto through the parent from a study of the following specification, medium f a y tong evice whi h is si nated taken in connection with the accompanying generally by the reference numeral The y drawings wherein like characters of reference tong device it includes pairs of angular, crossed designate corresponding parts throughout the metallic bars I! and I8 having their upper ends several views, and wherein: pivotally secured beneath the hopper I. The Figure 1 is a view in side elevation of a matelower ends of the bars [8 are journalled 0n the 30 rial spreader constructed in accordance with the Shaft l4. Pivotally ed o the 10Wer ends 01 present invention, showing the device attached to the ba s H are shOes 9 which are slidable on the rear end of a truck and ready for operation. e s de b 0f the frame in the u d s l2 Figure 2 i a view in f m; 1 ti of th for slidably connecting said bars [1 to said frame.

chine. Extending between the bars I8 is a fixed rod 35 Figure 3 is a bottom plan view of the device. 20 v n m n d thereon guides 2| h p rp e Figure 4 is a vertical sectional view through an of Which W be p tly set forth. The rod 20 i t di t portion of th i ti passes through slots 22 which are provided there- Figure 5 is a top plan View of t t te for in the bars H. Thus, the bars I! and I8 are portion of the device. operatively connected. An adjusting rod 23 is 40 Figure 6 is a perspective View of an end portion connected to the lower portions of the bars ll.

of one of the Side members of the frame The rod 23 extends slidably through an opening provided therefor in the cross member l3 of the frame I0 and has threaded thereon an adjusting nut 24. 5

J ournalled on the fixed shaftorrod 20 is a pneu- Referrlng now to the drawings in detail, it W111 matic tire equipped driven wheel 25. As best be Seen that h embodiment 9 the mventlon seen in Fig. 2 of the drawings, the wheel 25 is enwhich has been 1llustrated comprises an elongated gaged between the outer portions of t wheels 5 hopper of suitable material which is designated in a manner to be frictionauy driven thereby ge y y the reference numeral The 9- Mounted for vertical sliding movement in the Pe l is a p to be mounted transversely guides 2| is a stem or rod 26. Rotatably mounted neath the rear end of a tru y 2 y suitable on the upper end of the rod 26 is a horizontal means, such as adjustable hook q pped chains spreading disk 21. The reference numeral 28 55 3. It Will be noted that the truck body 2 is shown designates a suitable bearing for the disk 21 on 55 Figure 7 is a detail view in vertical section through the rotating spreader disk, showing the comparatively high and low vanes or ribs thereon.

the rod 26. The bottom of the spreading disk 2'! is frictionally engaged with the periphery of the wheel 25 for actuation thereby. This frictional contact is maintained at all times through the medium of a coil spring 29 on the lower portion of the rod 26. Of course, the spreading disk 21' is located beneath the discharge opening 1 for receiving the material from the hopper I. Extending upwardly from the spreading disk 21 through the opening 1 is an agitator 30 which is operable in the lower portion of the hopper I.

Hingedly mounted for swinging adjustment in a vertical plane beneath the inclined side portions of the hopper I is a pair of bafiies 3| for controlling the width of the area over which the material will be spread. Chains 32 are provided for adjusting the bafiies 3|.

It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. Of course, the hopper I receives the material to be spread from the truck body 2. As the machine travels over the ground behind the truck the wheels i5 are rotated. Thus, the wheel 25 is driven which, in turn, rotates the disk 21. With the slidable closure plates 8 open and in the desired adjusted position, the material from the hopper i flows by gravity through the discharge opening I and drops onto the rotating disk 21. As will be readily seen, this material is thrown from the disk 27 by centrifugal force. The construction and arrangement is such that a uniform or even spread of the material is had. As hereinbefore stated, by adjusting the bafiles 3| the width of the spread may be controlled. To adjust the wheels l5 relative to the hopper l for different heights of trucks the lazy tong device I6 is opened or closed through the medium of the rod 23. The bars l8 swings on the axes of the wheels l5, and therefore, the driven wheel 25 is always in contact with said wheels I5.

It is believed that the many advantages of a material spreader constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the machine is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts 'may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A material spreader of the class described comprising a frame, a ground engaging wheel rotatably mounted on said frame, a lazy tong device mounted onthe frame, a hopper mounted on said lazy tong device, means for actuating the lazy tong device for adjusting the hopper and the ground engaging wheel relative to each other, a spreading disk rotatably mounted beneath the hopper for receiving material therefrom, and means for actuating said spreading disk.

2. A material spreader of the class described comprising a frame, a ground engaging wheel rotatably mounted on said frame, a lazy tong 'device mounted on the frame, a hopper mounted on said lazy tong device, means for actuating the lazy tong device for adjusting the hopper and the ground engaging wheel relative to each other, a spreading disk rotatably mounted beneath the hopper for receiving material therefrom, and means for actuating said spreading disk, the last named means including a wheel rotatably mounted on.the lazy tong device and frictionally engaged with the first named wheel and with the spreading disk.

3. A material spreader of the class described comprising a frame, a pair of spaced ground engaging wheels rotatably mounted in said frame, a lazy tong device mounted on the frame, a hopper mounted on said lazy tong device, means for actuating the lazy tong device for adjusting the hopper and the frame relative to each other, a rod mounted for vertical sliding movement on the lazy tong device, a spreading disk rotatably mounted on said rod and located beneath the hopper for receiving material therefrom, a wheel rotatably mounted on the lazy tong device and engaged with the first named wheels for actuation thereby, the second named wheel also being engaged With the spreading disk for frictionally driving same, and resilient means operatively connected to the vertically slidable rod for engaging the spreading disk with the second named wheel.

FRANCIS E. CURRIVAN. CARL W. BROWN. 

